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9-3 User: Create a class named User, which contains the attributes first_name and last_name, as well as several other attributes that the user profile usually stores. Define a method named describe_user () in the class User, which prints a summary of user information; Then define a method called greet_user (), which sends personalized greetings to users.Practice changing brain structure//065However, there are many influences on critical strike damage. For example, if there are 4 factors, there may be an average of 3 factors."No, the whole waist is broken and people are divided into two parts from the middle." Wang Zeduan said.民国初年，军阀混战时期，陕北说书艺人兰老五在兵荒马乱之际捡到一襁褓中的女婴，从此悉心照料并抚养其长大，兰根根、冯三虎、张忠汉几位儿时的伙伴更是倾情呵护。妻妾却仅有一弱智多病的儿子，于是千方百计将兰花花娶为儿媳，指望其传宗接代。迎亲时冯三虎等几位伙伴率众抢亲失利，悲痛欲绝。孰料周若怀之子在洞房花烛之际猝死。周若怀再施奸计，将兰花花送与山西富户蔺士殿为妾，自己则趁机纳蔺士殿的干女儿为妾。暗恋兰花花的张忠汉此时已从军升官，结合绿林好汉于送亲途中劫出兰花花。残酷的现实使冯三虎感悟到，乱世之中没有公道，要想保住自己心爱的女人，要想过上幸福的日子，就得有钱有权有势，于是他决定去吃粮当兵，以自己的鲜血和生命去换取改变命运的主动权。兰花花憧憬民主、自由、平等、博爱、衣丰食足的未来生活，全力支持三虎另寻出路。但这样一来，说得不清不楚，却更加令众人震惊了：若是杀胡镇一人倒还真不算大事，若是带人杀上胡府，把胡家给屠了，那可就是天大的事了。